Brummel
ebebc2401b
Architect drift review (scope cec7811..HEAD, the sole gate — no regression script) returned drift-clean with positive What-holds: - invariants 8/9: the whole cycle is aura-cli (main.rs + cli_run.rs + ephemeral docs); nothing entered aura-engine/aura-registry; FamilyKind::MonteCarlo, monte_carlo, append_family, mc_member_reports are pre-existing seams reused. - invariant 1 / C1: draws run disjoint-parallel via the engine monte_carlo seam (seed-input order, no within-sim concurrency); bit-identity proven by the reproduce round-trip (unit + E2E). - the C1 lockstep is a single shared fn: synthetic_walk_sources (one fixed SyntheticSpec) is called by BOTH the persist path and the reproduce MonteCarlo branch; pip is lockstepped too (both pass DataSource::Synthetic). - the sweep-sibling pattern matches: Result<McFamily,String> + boundary render. - scope honesty: WF deferral (#173, dep #169) and synthetic-walk-DGP (#172) are named in the spec + feat body, not silent. Carry-on debt (does NOT block close, filed forward, NOT new-this-cycle drift): synthetic_walk_sources' len:60 is hand-calibrated to the shallow stage1 warm-up; a deep-lookback closed blueprint warms poorly -> silent-vacuous draws with no error, and the anti-degenerate test only exercises the shallow fixture. Folded into #172 (real-data DGP retires the length calibration) per the architect's recommendation, rather than a new thread. Ledger refreshed: the C21 realization block now records the MC verb shipped (cycle 0095) with WF deferred; the C18 reproduction block notes aura reproduce now spans FamilyKind::MonteCarlo. Verified green (orchestrator, this session): cargo build --workspace clean; cargo clippy --workspace --all-targets -- -D warnings clean; cargo test --workspace green. Cycle is drift-clean (not a milestone close — #170's WF half remains, milestone stays open). refs #170